Method of and apparatus for facilitating the building of wall structures



March 26, 1929. A N, YOUNG 1,706,971

METHOD OF AND APPARATUS FOR FACILITATING THE BUILDING OF WALL STRUCTURES Filed May 5, 1927 Patented Mar. 26, 1929.

UNITED STATES 1,706,971 PATENT OFFICE.

ALBERT N. YOUNG, OF CASTLE SHANNON, PENNSYLVANIA.

METHOD OF AND APPARATUS FOR FACILITATING THE BUILDING 0F 'WALL STRUCTURES.

Application filed. May 3,

My invention relates to a methodoi' building wall structures particularly ofthe block and mortar type, and apparatus for facilitating the building of such structures.

One object 01"? my invention is to provide a putlog for the scaffolding that may be anchored'in the wall as it is being built and to thereby eliminate the inner uprights usually required immediately adjacent the wall structure.

I-leretoliore, in building a block and mortar wall it has been customary to build a scail'olding upon which the mason works by placing inner uprights immediately adja cent the wall and outer uprights spaced several feet from the wall and by joining them with horizontal putlogs, bolted or nailed to the uprights. The putlogs serve to support the horizontal boards or planks constituting the platform upon which the mason works.

An object of my invention to provide a putlog that may be temporarily anchored in the space between the blocks of the wall for supporting its inner end and to thereby eliminate the usual inner uprights. there are a large number of uprights rcquired for the inner portion of the scaffold ing, according to the old style of construction, quite a saving in labor and material cost is rendered possible by the use of my improved putlogs and method of operation.

A further object of my invention is to reduce the material necessary for scafiolding and to reduce to a-minimum the time re quired for erecting and taking down the scaffolding.

These and other objects that will be made apparent throughout the further description of my'invention are attained by means of the process and apparatus hereinafterdescribed and illustrated in the accompanylng draw ings wherein,

Fig. 1 is a perspective View of a scallolding in which my improved putlog is employed;

Fig. 2 is a perspective view of my improved putlog; p

Fig. 3 is a transverse vertical section through a wall under construction and with which my improved scaifolding put-log is employed; V

Figs. dand 5 are elevational and sectional views, respectively,- of a iragment'oi a wall on an enlarged scale, illustrating the application of my improved putlog thereto.

Referring to the drawings and particu- Since a 1927. Serial No. 188,571.

larly to Fig. l which shows a scaffold applied to a wall structure, a brick and mortar wall is illustrated in the process of construction. The wall in this instance is a brick veneer wall comprisingvertical wooden studding 6 upon which board sheathing 7' is nailed. A single layer of brick 8 is laid upon the foundation 9 in the usual manner up to the elevation oili the first platform. At this level a plurality of horizontally disposed putlogs 12 are laid upon the row 11 of the brick wall. r v

The improved putlog 12 comprises a metal bar of if-shape, commerciallyknown a "T-bar, which may have the flanges or. Webs angularly cut at one end to forth a pointed bar, as shown in Fig. 2. The bar is periorated adjacent the ends for receiving retaining nails in a manner to be hereinafter described.

As shown in Figs. 1, 4: and 5, the putlog is placed with its flat face upon the center of a brick, and the web 13 is disposed in the space 14 between the adjacent ends of bricks l5 and 16, usually occupied by the mortar. The pointed end of the putlog may be driven partially into the wooden. sheathing *1" indicated in Fig. 5 in order to support it ini tially upon the sheathing until the mortar surrounding the brick directly beneath the putlog hardeus suilicicntly to sustain the weight oi the scaffolding without being displaced, a a

The outer ends of the putlogs are supported upon the horizontal ledger boards 17 that are nailed to the uprights 18, and are secured to theuprights 18 by nails 19 inserted in holes 21 in the webs or flanges of the putlogs. a

A platform comprising planks 22 is placed upon the putlogs which are preferably spaced about four feet apart and upon this platform the mason operates until the wall. reaches a level that necessitates a second platform.

In Fig. 3 I have shown. a wall comprising a foundation wall composed of cement blocks, and a brick wall 11 of the veneer type shown in Fig. 1. Two sets of putlcgs are shown, the lowermost set remaining as a part oi? the scaffolding and the planks 22 oi. the platform are disposed 011 the upper set oi put-logs. As many. sets of putlogs may be employed the height of the wall requires.

l/Vhen the wall is completed and the scattoldmg is no longer necessary, the platiorm is shifted to a lower set of putlogs and the upper set withdrawn from the wall. l he spaces between the bricks formerly occupied by the putlogs are filled vith mortar.

The putlogs are thus successively removed and the spaces occupied thereby are filled with mortar. Since the webs of tl'ieputlogs loosely fit within the usual mortar space be tween the blocks, thepiaces formerly occupied'by the putlogs cannot be detected after they have been filled'with mortar.

' ,As shown in Fig. 3, the uppermost putlog :is shown as applied to thesheathing for siupporting'the carpenters scail old. It will benoted that the portion oil the putlog is reversed with respectto the putlogs beneath it, and that the end of the web, 15, is cut away as shown in Figs. 1 and 52, leaving a fiat flange which may beinserted through .the space between the sheathing boards and pinned in. place by tapered pins, 25, which are mserted through the holes 26 and wlnel engage the rear l'ace oi the sheathing.

v i WVhile I. have shown the improved putlog log the cost of scaffolding is very materially reduced, and since the putlogs are made of metal, they are practically indestructible land may be-used over and over. They occupy'less space than the usual wooden. putlogs and may beconveniently carried and stored in limited space.

By anchoring theinner ends of the putlogs in the wall, a ru ed and safe scatiolding is produced requiring no diagonal bracing of the outer uprights,'thus materially reducing the lumber required;

'It is obvious that bars having other shapes, such as angle bars, or barshaving all but the vertical'web cut awa at the ends, may be substituted for the T- ar illustrated and my invention is not limited to the specific bar constructionillustrated. Any bar that may be placed within the usual mortar space without necessitating displacement of the block lieswithin the contemplated scope of my invention. 7

While I have illustrated certain embodi- Hments of my invention, it will be apparent to those skilled in the art that various changes, modifications, substitutions, additions and omissions may be made in the apzental extend the further in the wall being proparatus illustrated without departing from the spirit and scope of my invention, as set forth in the appended claims.

I claim as my invention:

1. A fabricated metal T-bur adapted for use as a horizontal putlog for srall'olding, with its liat side horizontal, charactcrized by having its vertical web cut down at both ends and having perforations for receiving nails 1 ear the ends of all. webs, as well as a plurality of spaced l11tl'llll(lltll 5 perforations for adapting the bar to general use in several diliereut ways in scailolding.

ii A putlog comprising a fabricated structurai metal bur having webs at an angle to each other, characterized by having at least one en i cut down to provide a single lnu'izont n;. ;e-e; ;lension adapted to lit inlo 'zoinal cracks in a wall and having perfor receiving nails near the ends cos suitable for receiving nails. pntlog comprising a fabricated structural-metal bar having webs at an angle to each other, characterized by having one end L ted, one of the webs being cut entirely away at the other end, said bar having perforations at each end thereof suitable for receiving nails.

l. A talu'icatedv metal T-bar adapted for use as a horizontal putlog for scail'olding, with its flat side horizontal, characterized by having its vertical web cut down at at least one end and having perforations for receiving nails near the ends of all webs as well as a plurality oil spaced intermediate perforations for adapting the bar to general use in several diilerent ways in scallolding.

5. A pntlogcomprising a abricaled structural-metal bar having webs at an angle to each other, characterized by having at least onecnd cut down to provide a single horizontal flange-extension adapted to fit into horizontal cracks in a wall and having perforations for receiving nails near the ends of all webs, as well as a plurality of spaced intermediate perforations for adapting the bar to general use in several ways in seat folding.

6. A structural-metal bar adapted for use r as a horizontal putlog for scaffolding, with a flat horizontal web, characterized by having at least one vertical web, the vertical web being cut back at diilerent distances at the two ends of the bar, the horizontal web being flat to its very ends to provide fiat web-extensions either of which is adapted to fit into a horizontal crack in a wall, the two web-extensions being adapted, by reason of the dissimilar cutting of the ends of:

the vertical web, to extend dillerent distances into the crack in the wall, the horin'eb-extension which is adapted to vided with a perforation for receiving a pin tor preventing accidental withdrawal of the bar from the crack, the bar having also other perforations so spaced that, Whichever end is inserted for its intended maximum distance into a crack in the Wall, some of said other perforations Will be spaced a uniform distance from the wall corresponding to the distance between the wall and the uprights of the scaffolding.

7. A fabricated structural-metal bar for use as a putlog for scaffolding, said bar having a horizontal flat face and a vertical Web, said bar being provided, at at least one end, with one or more perforations for fastening the bar behind the sheathing of the Wall, the bar having also other fastening means so spaced that, Whether the bar is extended in through the sheathing or not, some of said other fastening means will be spaced a uniform distance from the Wall corresponding to the distance between the Wall and the uprights of the scaffolding.

8. A fabricated T-bar for use as a putlog for scaffolding, said bar having a horizontal fiat face and a vertical Web joined to the center thereof and running longitudinally along the bar, both said flat face and said vertical Web being perfectly fiat, respectively, throughout their Whole length, said bar being provided, at at least one end, With one or more perforations for fastening the bar behind the sheathing of the Wall, the bar having also other perforations so spaced that, Whether the bar is extended in through the sheathing or not,son1e of said other perforations Will be spaced a uniform dlstance from the wall corresponding to the distance between the Wall and the uprights of the scaffolding.

In testimony whereof, I have hereunto subscribed my name this 30th day of April,

ALBERT N. YOUNG. 

